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| die Luft ist regungslos | |||
| воздух неподвижен: 10 phrases in 8 subjects |
| Aerodynamics | 1 |
| Automobiles | 2 |
| Construction | 1 |
| Food industry | 2 |
| Geophysics | 1 |
| Metrology | 1 |
| Mining | 1 |
| Refrigeration | 1 |
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